Using cutting-edge technologies such as ground penetrating radar (GPR),LIDAR (Light Detection and Ranging),and 3-D imaging, scientists research fascinating underworlds of secret tunnel networks, ancient structures, and bizarre geological...
Using cutting-edge technologies such as ground penetrating radar (GPR),LIDAR (Light Detection and Ranging),and 3-D imaging, scientists research fascinating underworlds of secret tunnel networks, ancient structures, and bizarre geological occurrences that offer glimpses into our history.
Aired: Feb 13, 2017Rob Nelson investigates rumors of a secret underground escape route used by t...
2. Mystery of the Serpent Mound
Aired: Feb 20, 2017Rob Nelson explores mysterious tunnels beneath Denver's airport, capitol buil...
Aired: Feb 27, 2017What caused the deaths of 57 Irish railroad workers in 1832 Pennsylvania at a...
Aired: Mar 6, 2017Rob Nelson examines a set of bizarre markings that suggest a violent clash be...
5. Great Lakes Bermuda Triangle
Aired: Mar 14, 2017Rob Nelson descends into a cave 30 feet beneath Texas in search of evidence o...
6. California's Hidden Doomsday
Aired: Mar 21, 2017Rob Nelson heads to California to investigate a network for major fault lines...
7. Secret History of the New World
Aired: Mar 28, 2017Rob Nelson investigates investigates a cluster of ancient ruins in New Englan...
Aired: Apr 4, 2017Rob Nelson investigates the mysterious pattern of rocks at the bottom of Lake...
Appearances
Current Status: Returning Series
Network: Science
Production Country: United States
Genres:Documentary
